Haarlem–Leiden railway
E202511
The Haarlem–Leiden railway is a historic rail line in the Netherlands that connects the cities of Haarlem and Leiden and serves several intermediate towns in the province of North Holland.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Haarlem–Leiden railway canonical | 3 |
| Haarlem–Leiden railway line | 2 |
| Haarlem–Leiden section | 1 |
| Leiden–Haarlem railway line | 1 |
| Old Line (Oude Lijn) | 1 |
| Oude Lijn | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1811133 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Haarlem–Leiden railway Context triple: [Nieuw-Vennep, railwayLine, Haarlem–Leiden railway]
-
A.
Amsterdam–Haarlem–Rotterdam railway
The Amsterdam–Haarlem–Rotterdam railway is one of the Netherlands’ oldest and most important mainline rail routes, connecting major cities in the Randstad region.
-
B.
Weesp–Leiden railway
The Weesp–Leiden railway is a key rail line in the Netherlands connecting the Amsterdam area with Leiden and serving as an important corridor in the Randstad region’s passenger rail network.
-
C.
The Hague–Rotterdam railway
The Hague–Rotterdam railway is a major Dutch rail line connecting the cities of The Hague and Rotterdam and serving several important intermediate stations in South Holland.
-
D.
Amsterdam–Zaandam–Enkhuizen railway
The Amsterdam–Zaandam–Enkhuizen railway is a key rail route in the Netherlands connecting Amsterdam with the Zaan region and the historic port town of Enkhuizen.
-
E.
Amsterdam–Arnhem railway
The Amsterdam–Arnhem railway is a major Dutch rail corridor connecting Amsterdam with the eastern city of Arnhem and forming part of the international route toward Germany.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Haarlem–Leiden railway Target entity description: The Haarlem–Leiden railway is a historic rail line in the Netherlands that connects the cities of Haarlem and Leiden and serves several intermediate towns in the province of North Holland.
-
A.
Amsterdam–Haarlem–Rotterdam railway
The Amsterdam–Haarlem–Rotterdam railway is one of the Netherlands’ oldest and most important mainline rail routes, connecting major cities in the Randstad region.
-
B.
Weesp–Leiden railway
The Weesp–Leiden railway is a key rail line in the Netherlands connecting the Amsterdam area with Leiden and serving as an important corridor in the Randstad region’s passenger rail network.
-
C.
The Hague–Rotterdam railway
The Hague–Rotterdam railway is a major Dutch rail line connecting the cities of The Hague and Rotterdam and serving several important intermediate stations in South Holland.
-
D.
Amsterdam–Zaandam–Enkhuizen railway
The Amsterdam–Zaandam–Enkhuizen railway is a key rail route in the Netherlands connecting Amsterdam with the Zaan region and the historic port town of Enkhuizen.
-
E.
Amsterdam–Arnhem railway
The Amsterdam–Arnhem railway is a major Dutch rail corridor connecting Amsterdam with the eastern city of Arnhem and forming part of the international route toward Germany.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
railway in the Netherlands
ⓘ
railway line ⓘ |
| connects |
Haarlem
ⓘ
Leiden ⓘ cities in the Randstad conurbation ⓘ |
| country | Netherlands ⓘ |
| electrification | overhead line ⓘ |
| hasInfrastructureType | double-track railway ⓘ |
| hasMode | heavy rail ⓘ |
| hasOwner | ProRail ⓘ |
| historicalSignificance | one of the early railway connections between major Dutch cities ⓘ |
| locatedIn |
province of North Holland
ⓘ
Western Netherlands ⓘ
surface form:
western Netherlands
|
| operator | Nederlandse Spoorwegen ⓘ |
| partOf | Dutch railway network ⓘ |
| passesThrough |
rural areas
ⓘ
suburban areas ⓘ urban areas ⓘ |
| regionServed |
Randstad metropolitan region
ⓘ
surface form:
Randstad
|
| serves |
Heemstede
NERFINISHED
ⓘ
Hillegom ⓘ Lisse ⓘ Sassenheim ⓘ Voorhout NERFINISHED ⓘ |
| status | operational ⓘ |
| terminus |
Haarlem railway station
ⓘ
Leiden Centraal ⓘ
surface form:
Leiden Centraal railway station
|
| trackGauge | 1,435 mm standard gauge ⓘ |
| usedFor |
freight transport
ⓘ
passenger transport ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Haarlem–Leiden railway Description of subject: The Haarlem–Leiden railway is a historic rail line in the Netherlands that connects the cities of Haarlem and Leiden and serves several intermediate towns in the province of North Holland.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Haarlem–Leiden railway line
this entity surface form:
Haarlem–Leiden section
this entity surface form:
Old Line (Oude Lijn)
this entity surface form:
Oude Lijn
this entity surface form:
Haarlem–Leiden railway line
subject surface form:
Haarlem–Uitgeest railway
this entity surface form:
Leiden–Haarlem railway line